WO2001069559A1 - Systemes de detection - Google Patents

Systemes de detection Download PDF

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Publication number
WO2001069559A1
WO2001069559A1 PCT/GB2001/001153 GB0101153W WO0169559A1 WO 2001069559 A1 WO2001069559 A1 WO 2001069559A1 GB 0101153 W GB0101153 W GB 0101153W WO 0169559 A1 WO0169559 A1 WO 0169559A1
Authority
WO
WIPO (PCT)
Prior art keywords
control circuit
electronic control
sensor system
piezo
electric device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2001/001153
Other languages
English (en)
Inventor
Philip Elphee Williams
Peter John Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STAPLETHORNE XTRA-SENSE Ltd
Staplethorne Xtra Sense Ltd
Original Assignee
STAPLETHORNE XTRA-SENSE Ltd
Staplethorne Xtra Sense Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STAPLETHORNE XTRA-SENSE Ltd, Staplethorne Xtra Sense Ltd filed Critical STAPLETHORNE XTRA-SENSE Ltd
Priority to US10/221,583 priority Critical patent/US20030184438A1/en
Priority to AU40860/01A priority patent/AU4086001A/en
Priority to EP01911939A priority patent/EP1264290A1/fr
Publication of WO2001069559A1 publication Critical patent/WO2001069559A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/06—Mechanical actuation by tampering with fastening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
    • E05G1/00—Safes or strong-rooms for valuables
    • E05G1/10—Safes or strong-rooms for valuables with alarm, signal or indicator

Definitions

  • This invention relates to sensor systems.
  • a sensor system for security purposes, said sensor system comprising a piezo-electric device attached to a member in the line of stress flux such that unauthorised movement of the member will result in deflection of the piezo-electric device and generation of an electrical output which is passed to an electronic control circuit which includes filter means for separation of signals due to high-frequency events, which electronic control circuit is arranged to transmit a signal to an alarm, data processing device or other recording or indicating means.
  • the electronic control circuit is preferably arranged to respond to both low-frequency and high-frequency events.
  • the electronic control circuit may be arranged, in pre-selected circumstances, to generate a signal corresponding to an "ALERT" prior to generation of a signal corresponding to an "ALARM".
  • the piezo-electric device preferably includes a disc or other suitably shaped piezo device which is bonded to the member which may be, for example, a panel of a safe, a panel of a housing of an ATM or a prefabricated bearer which is positioned so that any attempt to break down a wall or strong-room or to up-root a safe or an ATM will result in the application of stress to the prefabricated bearer and the generation of an output voltage.
  • the member which may be, for example, a panel of a safe, a panel of a housing of an ATM or a prefabricated bearer which is positioned so that any attempt to break down a wall or strong-room or to up-root a safe or an ATM will result in the application of stress to the prefabricated bearer and the generation of an output voltage.
  • the output voltage will be generated during the period when the piezo-electric device is subject to changes in its physical conditions. During the periods when a steady mechanical state is experienced, the output of the piezo-electric device will remain high until the device is discharged in much the same way as a capacitor behaves.
  • the piezo-electric device may be bonded to the member in a deflected condition. Bonding of the piezo-electric device to the member may be effected, for example, using a quick-drying adhesive such as a cyanoacrylate adhesive.
  • a security system which includes a sensor system as defined above, an electronic control or processing circuit and an alarm.
  • the security system will be of general application, though developed for ATMs, and may be used for the protection of safety deposit boxes, secure areas or equipment such as computers and the like.
  • Figure 1 is a diagrammatic perspective view of a safe
  • Figure 2 shows the safe fitted with a sensor system
  • Figure 3 shows an automatic teller machine fitted with a sensor system
  • Figure 4 shows a wall or other barrier fitted with a sensor system
  • Figure 5 shows the lines of stress of the hinges of the safe shown in Figures 1 and 2, and
  • Figure 6 shows the control circuit of the security system.
  • the safe A shown in Figure 1 is typically made from steel and includes a door B and a side panel E on which the door B is hung by means of hinges D.
  • Figure 2 of the drawings shows the side panel E and the hinges D while Figure 5 of the drawings shows the lines of stress in the safe hinges and surrounding areas of the side panel E when an attempt is made to open the door B by, for example, inserting a crowbar or like implement between the wall of the safe and the door B at a point C.
  • Sensors F in the form of disc-shaped (or other suitably shaped) piezo-electric devices, are attached at points G to the side panel E because it is at these points that the maximum deflection will take place in the event of someone attempting to force open the door B of the safe A.
  • the energy required to force open the door will be transferred through the hinges D to the side panel E and focused at points G.
  • any attempt to force open the door B will set off the alarm due to deflection of the side of the safe A at one of the points G.
  • Figure 2 shows the fitting of two sensors F, i.e. one in line with each of the hinge points, in practice it may be sufficient to fit just one sensor F.
  • Additional sensors F can be fitted at other points on the side panel E which are considered vulnerable to attack.
  • the additional sensors will detect bending or deformation of the side panel E in the area surrounding the sensor location caused, for example, by localised force or pressure applied to the panel E.
  • the or each sensor F is attached to the side panel E in such a way as to maximise the points of contact between the sensor F and the surface with which it is in contact.
  • the or each sensor F is placed where the maximum number of lines of stress flux are to be found. In practice, it is usually necessary to smooth the surface prior to attachment of the or each sensor F using sandpaper.
  • the preferred method of attachment of the or each sensor F to the surface is the use of a cyanoacrylate adhesive, i.e. a quick-drying resin.
  • the signal from the or each sensor F is fed to an electronic control circuit H, where it is amplified and filtered to remove the unwanted components of the signal prior to transmission of the signal to an alarm.
  • the electronic control circuit is shown in Figure 6.
  • the sensors are also suitable for detecting the effects of heat by someone trying to gain entry to the safe A using a flame-cutting torch or thermal lance as the deflection of the side panel E and/or sensor F caused by expansion due to the rapid change of temperature will also set off the alarm.
  • the sensors F are also suitable for detecting high-frequency noise or vibration induced into the side panel E in an area surrounding the location of the sensor F caused by the application of equipment such as a disc cutter, angle grinder or drill.
  • FIG. 2 While the system shown in Figure 2 is suitable for use in protecting the safe of, for example, an automatic teller machine (ATM), it is also possible to fit sensors on other surfaces either outside or inside the safe to increase the level of security.
  • ATM automatic teller machine
  • the degree of security can be enhanced by placing additional sensors in strategically located places, for example, on the side panel I of the main casing of the ATM installation, as shown in Figure 3.
  • a further enhancement of the system is to fit a sensor in a position in which it will detect an attempt to gain access through a wall, as shown in Figure 4.
  • the wall is shown as N and the ground is K while L is a piece of resilient material which is bearing against the wall N and is under spring tension as a result of the fixings M which secure the piece of resilient material L to the ground K or any other suitable fixed point.
  • a sensor F is secured to the piece of resilient material L at a point in its length which is subject to the effects of the spring tension such that, if the wall N is forced inwards or pulled outwards or, indeed, if some masonry were to fall on the piece of resilient material L, any of these actions would cause the spring tension to change resulting in an output from the sensor F.
  • a sensor F is secured to a pre-fabricated bearer supporting the safe or ATM at a point close to the position of the bolts used to secure the bearer to the fixed floor or structure of the building in which the safe or ATM is located such that, if sufficient force is applied to up-root the safe or ATM from the floor or other fixed structure, the deformation of the bearer around the securing bolt will result in an output from the sensor.
  • the or each sensor F is connected to the electronic control circuit H.
  • one or more sets or channels of the electronic control circuitry will be provided as it may be necessary to set the sensitivity of the wall or side panel circuits differently from that required for the safe.
  • FIG. 6 shows the electronic control circuit to which signals are fed by the sensors F and which controls operation of an alarm.
  • One sub-channel of the control circuit is set to a high level of sensitivity and has a low threshold to detect low amplitude signals caused by very minor deflections of the safe structure around the position of the sensor or sensors. These could be caused by something as little as a person or heavy object leaning or being pushed against the safe structure.
  • This sub-channel is intended to provide an initial alert and includes a filter LPF, a low threshold amplifier and two gates indicated as GATE 1 and GATE 2.
  • a second sub-channel of the control circuit is set to a high threshold level to identify major deflections of the safe structure adjacent the sensor or sensors. Such deflections are likely to be caused by a savage attack on the structure of the safe or, more likely, by rapid heating of the side of the safe by means of an oxy- acetylene torch or other cutting device. Use of such a device would initially be detected by the high-sensitivity "alert" sub-channel referred to above and then by this sub-channel.
  • This sub-channel provides a follow-up to the initial alert with a full ALARM suggesting use of heat- based cutting equipment. It includes the filter LPF, a high threshold amplifier and the two gates indicated as GATE 1 and GATE 2.
  • a third and separate sub-channel of the control circuit includes a very high threshold detector LEVEL DET.
  • This sub-channel can be linked to a separate sensor or sensors located on a resilient plate bearing against the wall or close to the mounting bolts for the automatic teller machine (ATM) to detect major deformations of the resilient plate or mounting bolts caused by attempts to, for example, uproot the ATM by force. Activation of this sub-channel represents a major attack on the ATM and activates an alarm.
  • This sub-channel includes a filter LPF, the level detector LEVEL DET and GATE 2.
  • a fourth sub-channel of the control circuit looks for signals having a high frequency such as the noise signals which would be caused by an angle grinder or drill used to attack the wall of the ATM adjacent to a sensor or sensors.
  • This fourth sub-channel is responsive to signals within the high frequency band which have an amplitude above a chosen threshold and either occur continuously for a pre-selected period of time or occur for a pre-set percentage of a pre-selected period of time.
  • This fourth sub-channel includes filter HPF, the noise level detector, a timer, GATE 1 and GATE 2.
  • the first sub-channel or ALERT will initially be activated. If the drill or angle grinder is then started, the fourth sub-channel will respond to the generated noise and follow up the initial alert with a full ALARM suggesting that a drill or angle grinder is being used to attack the ATM.
  • High frequency noises generated outside the immediate vicinity of the ATM will not normally cause an alarm because:- a) the noise signal must be accompanied by a deflection of the structure of the ATM, b) the noise signal must be substantially continuous, and c) the amplitude of the signal reaching the sensors is unlikely to be large enough to generate the alarm.
  • a sensor may be attached to a sheet of reinforced glass in a window of a secure room such that any attempt to break the reinforced glass will result in operation of an alarm.
  • a sensor might also be attached to the underside of a floor panel in a secure area so that any person treading on the floor panel will trigger the alarm.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

L'invention concerne un système de détection utilisé dans le domaine de la sécurité, comprenant un dispositif piézo-électrique (F) fixé à un membre (E) placé sur la trajectoire des contraintes, de sorte qu'un mouvement non autorisé dudit membre entraîne une déflexion du dispositif piézo-électrique et la production d'un signal de sortie électrique. Ce dernier est acheminé à un circuit de commande électronique (H) qui comprend un moyen de filtration (LPF) servant à séparer des signaux produits par des événements haute fréquence et qui est conçu pour transmettre un signal à une alarme.
PCT/GB2001/001153 2000-03-16 2001-03-15 Systemes de detection Ceased WO2001069559A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/221,583 US20030184438A1 (en) 2000-03-16 2001-03-15 Sensor systems
AU40860/01A AU4086001A (en) 2000-03-16 2001-03-15 Sensor systems
EP01911939A EP1264290A1 (fr) 2000-03-16 2001-03-15 Systemes de detection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0006323.0 2000-03-16
GBGB0006323.0A GB0006323D0 (en) 2000-03-16 2000-03-16 Sensor systems

Publications (1)

Publication Number Publication Date
WO2001069559A1 true WO2001069559A1 (fr) 2001-09-20

Family

ID=9887721

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/001153 Ceased WO2001069559A1 (fr) 2000-03-16 2001-03-15 Systemes de detection

Country Status (5)

Country Link
US (1) US20030184438A1 (fr)
EP (1) EP1264290A1 (fr)
AU (1) AU4086001A (fr)
GB (2) GB0006323D0 (fr)
WO (1) WO2001069559A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1341137A1 (fr) * 2002-02-18 2003-09-03 Giorgio Tonelli Un système de sécurité, particulièrement pour la surveillance de propriété, et un détecteur
WO2004090827A1 (fr) * 2003-04-07 2004-10-21 Bulldog Technologies (Bc) Inc. Systeme de securite a retroaction continue pour conteneur
WO2010112232A1 (fr) * 2009-04-01 2010-10-07 ERÜ Kunststofftechnik GmbH Installation d'alarme
KR101275144B1 (ko) 2011-03-04 2013-06-17 주식회사 큐브시큐리티 절전형 금고 충격 및 이동 감지 장치
EP2814011A1 (fr) * 2013-06-13 2014-12-17 Xtra-sense Limited Procédé et système d'alarme d'armoire

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7075426B2 (en) * 2002-09-06 2006-07-11 3Si Security Systems, Inc. Flex motion wake-up circuit for a security pack
US8456305B2 (en) * 2005-11-22 2013-06-04 Tell A. Gates Redundant security system
US20080196313A1 (en) * 2007-02-16 2008-08-21 Therma-Tru Corporation Door and Door Frame Assembly
GB0900107D0 (en) * 2009-01-06 2009-02-11 Xtra Sense Ltd Security system
DE202014106128U1 (de) 2014-12-17 2015-02-02 Xtra-Sense Ltd. Schrankalarmsystem
EP3413278A1 (fr) 2017-06-06 2018-12-12 PNP Tech, S.A. Methode et appareil autonome pour la supervision de la distribution illicite de billets d'un guichet automatique bancaire, et systeme le comprenant

Citations (3)

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Publication number Priority date Publication date Assignee Title
EP0245682A2 (fr) * 1986-05-07 1987-11-19 Alioth, Alexandra Dispositif de commande d'un appareil électrique d'alarme
US5347870A (en) * 1992-01-29 1994-09-20 State University Of New York Dual function system having a piezoelectric element
EP0848130A2 (fr) * 1996-12-11 1998-06-17 Ncr International Inc. Coffre-fort amélioré

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US4054867A (en) * 1971-12-10 1977-10-18 Microwave And Electronic Systems Limited Detecting damage to bulk material
CH594943A5 (fr) * 1976-09-09 1978-01-31 Spirig Ernst
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GB8813874D0 (en) * 1988-06-11 1988-07-13 Transalarm Ltd Security system
GB8819487D0 (en) * 1988-08-16 1988-09-21 Pennwalt Piezo Film Ltd Sensing breakage of glass
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0245682A2 (fr) * 1986-05-07 1987-11-19 Alioth, Alexandra Dispositif de commande d'un appareil électrique d'alarme
US5347870A (en) * 1992-01-29 1994-09-20 State University Of New York Dual function system having a piezoelectric element
EP0848130A2 (fr) * 1996-12-11 1998-06-17 Ncr International Inc. Coffre-fort amélioré

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1341137A1 (fr) * 2002-02-18 2003-09-03 Giorgio Tonelli Un système de sécurité, particulièrement pour la surveillance de propriété, et un détecteur
WO2004090827A1 (fr) * 2003-04-07 2004-10-21 Bulldog Technologies (Bc) Inc. Systeme de securite a retroaction continue pour conteneur
US6870476B2 (en) 2003-04-07 2005-03-22 Bulldog Technologies Inc. Continuous feedback container security system
WO2010112232A1 (fr) * 2009-04-01 2010-10-07 ERÜ Kunststofftechnik GmbH Installation d'alarme
KR101275144B1 (ko) 2011-03-04 2013-06-17 주식회사 큐브시큐리티 절전형 금고 충격 및 이동 감지 장치
EP2814011A1 (fr) * 2013-06-13 2014-12-17 Xtra-sense Limited Procédé et système d'alarme d'armoire

Also Published As

Publication number Publication date
GB0006323D0 (en) 2000-05-03
US20030184438A1 (en) 2003-10-02
EP1264290A1 (fr) 2002-12-11
GB2365187A (en) 2002-02-13
GB0106337D0 (en) 2001-05-02
AU4086001A (en) 2001-09-24

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